Last Modified: 2012-01-17
Any source of energy other than fossil fuels that is used for constructive purposes.
A fundamental entity of nature that is transferred between parts of a system in the production of physical change within the system and usually regarded as the capacity for doing work.
The ratio of the useful energy delivered by a dynamic system to the energy supplied to it.
The use of heat from within the Earth or from the atmosphere near oceans.
The production of an electric or magnetic state by the proximity (without contact) of an electrified or magnetized body.
A resource that cannot be replaced once used.
The unit of electric resistance in the meter-kilogram-second system of units. Symbolized as Ω.
States that the direct current flowing in an electric circuit is directly proportional to the voltage applied to the circuit.
A result of a force moving an object a certain distance.
The unit of potential difference symbolized as V.
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